Is there anything out there that is like a spanx that works to prevent dvt on flights?

Support hose: You can get tight support hose, but the best way to prevent DVT is to get up and walk around frequently during the flight.

No: Dvt is problematic in long periods of inactivity. The best thing you can do on a flight is to frequently move your legs while seated and when you can get jo and move around.

Dvt: The best option is to use a support or compression stocking that includes the foot and calf during airplane travel These work to stimulate the muscle vein pumps of the foot and calf to prevent blood pooling which occurs with prolonged sitting